Niels poulson



(No Model.) y

' N. POULSON & B. E. J. EI-LS.

WROUGHT IRON 0R STEEL COLUMN.

PatentedJune 6, 1893.

IN VEN T 0R3 WITNESSES TNE Noam-maps co, mompmo. wlsnmomu. n. c.

used instead of channel irons.

NITED STATES PATENT OFFICE.

NIELS POULSON, or FORT HAMILTON, AND BETTE E. J. EILS, or NEW YORK, N.Y.

WROUGHT IRON OR STEEL COLUMN.

SPECIFICATION forming part of Letters Patent No. 498,859, dated June 6,1893.

Application filed December 31, 1892. Serial No. 456,861. (No model.)

To aZZ whom it may concern.-

Be it known that we, NIELs POULSON, residing at Fort Hamilton, county ofKings, and BETTE E. J. EILS, residing at New York, county of New York,State of New York, citi= zone of the United States, have invented a newand useful Column, of which the following is a specification.

This invention relates to columns built up of rolled wrought iron orsteel bars so assembled together that the finished column has aninterior hollow space, and hence may be called a box column, asdistinguished from wrought iron and steel columns in which the rolledbars are assembled to radiate from the center of the column and form asolid central core.

The principal features of our invention are, first, a wroughtiron orsteel box column made of flanged bars each of which is riveted by aflange to the web of one of the adjoining bars; second, a box columncomposed of flanged wrought iron or steel bars so assembled togetherthat the web of each bar lies against the outer face of the flange ofthe adjoining bar riveted to it.

In the annexed drawings, Figure 1 represents a cross-section of one ofour improved columns made of angle irons. Fig. 2 represents across-section of a column made of T irons. Fig. 3 represents across-section of a column made of Z bars. Fig. 4 represents across-section of a column made of channel irons. Fig. 5 represents across-section of a column made of channel irons. Fig. 6 represents across-section of a column made of channel irons. Fig. 7 represents across-section of a column made of channel irons, the dotted linesshowing that I beams may be Fig. 8 represents a cross-section of acolumn made of channel irons and the application of angle irons forstrengthening it. Fig. 9 represents a cross-section of a column made ofchannel irons and the application of bulb angles for strengthening it.Fig. 10 represents a crosssection of a fireproofed column made of angleirons illustrating the application of various sections of barsforstrengthening it. Fig. 11 illustrates a sectional elevation of one ofour improved columns showing the method for securing the girders orbeams to it. Figs.

6 to 11 are drawn on alarger scale than Figs. 1 to 5.

The same letters of reference are used on the several figures toindicate identical parts.

The drawings so fully illustrate the construction of our improved columnthat it is sufficien 1:, without further detail description, to pointout the advantages inherent in it.

By assembling the flanged bars or beams as illustrated we obtain acolumn of great rigidity by reason of the fact that the bars areconnected together each along two lines; and by arranging the bars insuch a way that the web of one lies against the outer, face of theflange of the adjoining one we are enabled to so' construct heavy andlight columns that the webs of the bars of a light column when erectedover a heavy column may stand vertically over the webs of the bars ofthe latter. This latter feature isillustrated by examining Figs. 6 and7, where it will be seen that the lighter column shown in Fig. 6 so fitson the heavier column shown in Fig. 7 that the webs of the two columnsrun in the same vertical planes.

Another advantage of assembling the bars so that the web of onewill lieagainst the outer face of the flange of the adjoining bar is that theperimeter of the column can be kept within the smallest possiblecompass.

It will be observed that the various flanged bars shown are such as areon the market, so that no special roll will have to be provided to makethem. Also, that the lines of connections are so arranged as to providefor practical riveting. Furthermore, that strengthening bars can beapplied without additional riveting.

In Fig.10 we have illustrated how gas and I outer face of the flange ofthe adjoining bar riveted to it, substantially as before set forth.

3. A box column composed of flanged Wrought iron or steel I beams eachriveted by a flange to the web of one of the adjoining I beams, the Ibeams being assembled as described namely so that the Web of each I beamlies against the outer face of the flange of the adjoining I beamriveted to it, substantially as before set forth.

4. A box column of several lengths varying in strength, composed offlanged Wrought iron or steel bars each riveted by a flange to the Webof one of the adjoining bars, the bars in each length of the columnbeing assembled as I 5 described namely so that the web of each bar liesagainst the outer face of the flange of the adjoining bar riveted to itand that the Webs of the different lengths of the column standvertically over each other,substantially 20 as before set forth.

NIELS POULSON. v BETTE E. J. EILS. Witnesses:

CHAS. E. POULSON,

J ENS L. HOLST.

